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XnviewApplication

CVE-2017-14282

HIGH · 7.8 CVSS v3.0 Published 2017-09-11
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
XnView Classic for Windows Version 2.40 allows attackers to cause a denial of service or possibly have unspecified other impact via a crafted .jb2 file, related to a "Read Access Violation starting at jbig2dec+0x0000000000005862."

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

XnView Classic version 2.40 contains a memory corruption vulnerability in its jbig2dec library component when parsing malformed JBIG2 (.jb2) image files. The vulnerability manifests as a read access violation at jbig2dec+0x0005862, which can cause application crashes (denial of service) and potentially enable arbitrary code execution.

MitigationAvoid opening untrusted or unverified .jb2 files in XnView Classic. If a patched version of XnView is available from the vendor, upgrade immediately. Consider temporarily disabling file associations for .jb2 files or using an alternative image viewer until the fix is applied.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
XnviewApplication
Affected:= 2.40

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify XnView Classic version
    Open XnView Classic, go to Help > About, or right-click the executable and select Properties > Details to see the version number
    Affected if Version is exactly 2.40
  2. Confirm jbig2dec library is present
    Check the XnView installation directory for jbig2dec.dll or a related library file that handles JBIG2 decoding
    Affected if The jbig2dec library component exists in the XnView installation folder
  3. Check for .jb2 file associations
    In XnView, go to Tools > Options > File Associations to see if .jb2 files are associated and set to open automatically
    Affected if .jb2 files are associated with XnView and would be opened automatically on double-click

A user is affected if they have XnView Classic version 2.40 installed with the jbig2dec component and .jb2 file associations enabled, making them vulnerable when opening malformed .jb2 files.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Avoid opening untrusted or unverified .jb2 files in XnView Classic. If a patched version of XnView is available from the vendor, upgrade immediately. Consider temporarily disabling file associations for .jb2 files or using an alternative image viewer until the fix is applied.

Fix this in Xnview Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing3.0 h
  • Review / QA2.0 h
10.0 hours of engineering $1,750
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2017-14282 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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